Door-lock.



PATENTED DEC. 3, 1907.: F. PIENING.

noon LOCK APPLICATION FILED b150- 17,1906.

Y P/J7W FERDINAND PIENING, OF RENDSBURG, GERMANY.

DOOR-LOCK.

Specification of Letters Patent.

Patented Dec. 3, 1907.-

Application filed December 17, 1906. Serial No 348.190.

To all whom it may concern:

Be it known that I, FERDINAND PIENING, a subject of the Em eror of Germany, residing at Rendsburg, (iiermany, have invented a new and useful Door-Lock which Can be Closed, of which the following is a specification.

The object of my present invention relates to door locks closed by means of a lock arranged inside the bolt.

In the accompanying drawings, in which I have illustrated my invention, like letters of reference refer to like different views.

In said drawings, Figure 1 shows a door bolt closed by a padlock. Fig. 2 shows a door bolt closed by a look arranged inside said bolt. Fig. 3 shows detail views of the handle and its connection rod to the bolt.

Fig. 4 shows detail views of the mechanism for arresting the bolt. Fig. 5 shows detail views of the bolt. Fig. 6 shows a plate for fastening the device to a door.

The door look as shown in Fig. 1 is chiefly used on doors to be opened from the outside such as used for closets, soldiers wardrobes and the like.

(1 illustrates a handle on which a square formed connection rod 6 is fixed. The rod 7) is rounded off at c. A prolongation of the rod 1) is formed by a pin d to which the square rod 6 designed to receive the bolt is firmly attached. The outer end of the square rod '6 is provided with a screw thread f which together with the screw 9 serves to hold fast the bolt. Below the rod 1) I arrange the plate like stop 72, providing a hole 71. The mechanism for the arresting of the bolt, as shown in detail in Fig. 4, consists of a plate 7c providing a square edged bar Z terminating into a screw threaded part m. The plate is provides a hole 0. The bolt p (Fig. 5) has a quadrangular hole g for the pin e.

The whole mechanism is fastened to plates 1" (see Fig. 6) fixed to the door. These plates provide two holes 8 and t the circular one 8 serving to receive the bolt d, while the quadrangular one t serves to receive the square edged bar Z. The fitting together of the single parts and the operation of the bolts is as described hereafter.

The plates r are fixed to both sides of the door in such a manner, that the circular parts throughout the holes are above the square edged holes. The pin d is passed into the circular holes. Now

the bolt 1) is fixed by means of the thread f If the bolt shall be closed the handle a, is

turned so far until the stop it rests against the plate is in such a way that the holes 1' and 0 cover each other. Now a padlock is passed through said openings. The bolt 29 is so mounted upon the square edged part-e that it catches in this position behind the molding of the closet and thereby prevents an opening of its door. If the ,door shall be opened I first take off the padlock and then turn the handle a, of the bolt 90 degrees.

If my improved device shall be used for house-doors or corridor-doors I locate the bolt 1) not behind but between the plates 1" (Fig. 2). The handle it placed on the outside of the door is in this case provided with i an internal thread 1) by means of which it is screwed upon the thread f of the inner handle. In this manner the bolt 19 is connected with the outer handle as well as with the inner handle. Here I prefer to leave away the padlock and instead of the same mount a lock in the plate is the closing part of which fits into a slit of the rod 6 preventing a turnin of the rod as well as a turning of the bolt.

hat I claim as new and desire to secure by a United States Letters Patent is 1. In a door lock the combination of a handle, a plate like stop (h) fixed to one side of said handle, a plate fixed below said. handle, and means to place the stop (7L) against the plate (k) if the bolt is locked substantially as and for the purpose set forth.

2. In a door lock the combination of a handle, a plate like stop (h) fixed to one side of said handle, a hole (i) provided in said plate like stop, a plate fiXed below said handle, a hole (0) provided in said plate, means to locate the holes in such a manner that they cover themselves if the handle is turned,

-means to place the stop (71) against the plate (7c), and a means for locking the parts together. substantially as and for the purpose set forth.

3. In a door lock the combination of two my name, in the presence of two subscribhandles, means to screw one handle into the ing Witnesses. other, a slit provided in a bar (1)), of one handle a plate (is), a look located in said plate FERDINAND PIENING' 5 and means to prevent a turning of the han- Witnesses:

dles and bolt substantially as set forth. CARL FUHLJOHN,

In Witness whereof I have hereunto signed OTTO LAU. 

